The Internal Battery Xiaomi Mi 8 Li-Polymer Model BM3E 3400 mAh is a high-quality battery specifically designed for the Xiaomi Mi 8 smartphone. With a capacity of 3400mAh and a voltage of 3.85, this battery ensures a long-lasting and reliable power source for your device. This Xiaomi battery is a perfect choice for those looking to replace or upgrade their current battery, providing peace of mind and maintaining the performance of your phone.